cDepartment of Pathology and Laboratory Medicine, University of California, Los Angeles Immunogenetics Center, Los Angeles, CA 90095;dDepartment of Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA 90095;

cDepartment of Pathology and Laboratory Medicine, University of California, Los Angeles Immunogenetics Center, Los Angeles, CA 90095;dDepartment of Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA 90095;

cDepartment of Pathology and Laboratory Medicine, University of California, Los Angeles Immunogenetics Center, Los Angeles, CA 90095;dDepartment of Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA 90095;

Conflict of interest statement: M.R.Y. and S.G.F. are cofounders of NovaDigm Therapeutics, which is developing novel vaccines and immunotherapeutics for infectious diseases, including methicillin-resistant Staphylococcus aureus.

Blood-sucking sand flies from disparate global regions have a predilection for feeding on the marijuana plant (Cannabis sativa), and the findings hint at a potential avenue for controlling sand flies, which can transmit leishmaniasis.